5. Bitcoin fell. The cryptocurrency traded down 10.11% on Monday, at $2,275 a coin, a one-week low. The action seems to be a continuation of the selling that developed on Wednesday, when rival Ethereum flash-crashed from $296 to 10 cents before recovering its losses.

6. Ethereum was also under pressure, trading down 18.55% near $241. The selling comes despite a late Friday blog post from GDAX — an exchange for cryptocurrencies like ethereum and bitcoin — promising that victims of last Wednesday's flash-crash will be made whole.

7. The ruble climbed. The currency was up 1.0% at 58.7991 per dollar in the late afternoon.